UBUNTU-CVE-2021-41229

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    UBUNTU-CVE-2021-41229

    Published: 12 Nov 2021Last Modified: 22 Apr 2026
    Upstream:
    CVE-2021-41229
    Aliases:
    USN-5155-1

    Summary:

    Details: BlueZ is a Bluetooth protocol stack for Linux. In affected versions a vulnerability exists in sdp_cstate_alloc_buf which allocates memory which will always be hung in the singly linked list of cstates and will not be freed. This will cause a memory leak over time. The data can be a very large object, which can be caused by an attacker continuously sending sdp packets and this may cause the service of the target device to crash.

    References: https://ubuntu.com/security/CVE-2021-41229, https://github.com/bluez/bluez/security/advisories/GHSA-3fqg-r8j5-f5xq, https://ubuntu.com/security/notices/USN-5155-1, https://www.cve.org/CVERecord?id=CVE-2021-41229

    Affected packages

    Package

    Name: bluez

    Purl: pkg:deb/ubuntu/[email protected]+esm5?arch=source&distro=esm-infra/xenial

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -None

    Affected versions

    5.35-0ubuntu2

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    UBUNTU-CVE-2021-41229 | CVE-DB